v3.26.3
Share-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Expense
The Company recognized share-based compensation in its Condensed Statements of Operations and Comprehensive Loss during the three and nine months ended September 30, 2026 and 2025 as follows:
Three Months Ended
September 30,		Nine Months Ended
September 30,
2026202520262025
Manufacture and supply$84 $130 $219 $358 
Research and development319 1,310 868 2,048 
Selling, general and administrative1,723 1,337 6,252 3,842 
Total share-based compensation expenses$2,126 $2,777 $7,339 $6,248 
Share-based compensation from:
Restricted stock units$1,282 $1,997 $4,758 $4,506 
Stock options844 780 2,569 1,733 
Employee stock purchase plan (ESPP)— — 12 9 
Total share-based compensation expenses$2,126 $2,777 $7,339 $6,248 
Schedule of Restricted Stock Units Awards
The following tables summarize the Company’s awards of service-based and market conditions vesting-based restricted stock units for the nine month period ended September 30, 2026:
Restricted Stock Unit Awards (RSUs) - Service-based:Number of
Units		Weighted
Average
Grant Date Fair
Value
(in thousands)
Unvested as of December 31, 20252,684 $3.24 
Granted1,446 $4.28 
Vested(1,378)$2.64 
Forfeited(58)$4.17 
Unvested as of September 30, 20262,694 $4.09 
Expected to vest as of September 30, 20262,521 $4.09 
Schedule of Stock Option Activity
Restricted Stock Unit Awards (RSUs) - Market conditions vesting-based:Number of
Units		Weighted
Average
Grant Date Fair
Value
(in thousands)
Unvested as of December 31, 20251,728 $2.55 
Granted (a)
541 2.40 
Vested(1,706)2.28 
Forfeited— — 
Unvested as of September 30, 2026563 $2.82 
Expected to vest as of September 30, 2026523 $2.82 
(a) The 2023 market conditions vesting-based restricted stock units vested at 150% in May 2026. These additional units were granted during the nine months ended September 30, 2026.
Stock Option Awards:Number of
Options		Weighted Average
Exercise Price
(in thousands)
Outstanding as of December 31, 20256,558 $5.59 
Granted1,324 4.21 
Exercised(45)1.13 
Forfeited/Expired(27)3.20 
Outstanding as of September 30, 20267,810 $5.39 
Expected to vest as of September 30, 20267,686 $5.41 
Exercisable as of September 30, 20265,771 $5.85 
Schedule of Stock Option Valuation Assumptions
The Company’s estimates of the fair value of the 2025 market conditions vesting-based awards at their grant or valuation dates were based on a Monte Carlo simulation and considered various variables and the following assumptions:
Expected dividend yield0%
Expected volatility91.5%
Risk-free interest rate3.9%
Stock price at grant date
$2.65
The fair values of stock options granted were estimated using the Black-Scholes pricing model based on the following assumptions:
Nine Months Ended
September 30, 2026
Expected dividend yield—%——%
Expected volatility96%—98%
Expected term (years)5.5—6.1
Risk-free interest rate3.8%—4.4%